70 THE SCOTTISH NATURALIST 



14 ft. ; whereas the maximum length known, according to Day 

 {British Fishes) and to Bridge {Camb. Nat. Hist.), is only a foot 

 more 15 ft. James Ritchie, Royal Scottish Museum. 



Distribution of Norellia spinigera, Ztt., in the British 

 Isles. With reference to the paragraph in the February number of 

 the Magazine under the head " Gleanings," I would draw attention 

 to the following points regarding the occurrence of Norellia 

 spinigera in the British Isles. That this species is by no means so 

 uncommon as it was assumed to be in the year 1900 is proved 

 by the following list of captures, viz. : Nethy Bridge, 28th July 1904 

 (apparently three specimens taken on this day), 2nd August 1904, 

 and 13th July 1905; Aviemore, 20th and 26th May 1904; The 

 Mound, 24th June 1904; Crickhowell, nth August 1910; and 

 Church Stretton, 19th August 1901 (Beaumont) ; while in addition, 

 Dr Wood has taken the insect on the Black Mountain, and Mr 

 Collin has already recorded several other captures. The English 

 localities recorded above are not without interest, as they are all 

 situated on the Silurian formation of the Welsh Marches, and may 

 give a clue to the distribution of the species in England ; as regards 

 the Scottish localities, attention may be drawn to two of them as 

 being likely to offer a fair chance of success should they be visited; 

 they are an alder swamp on the banks of the Spey near Aviemore, 

 and a similar spot at Nethy Bridge on the bank of the stream 

 towards Roy Castle, near the junction of this stream with the 

 Spey. J. W. Yerburv, London. 



Trichothrips pedicularius, Hal., in "Forth." In his 



paper on "Some Rare Thysanoptera from Scotland,"' in the pre- 

 vious number of this Magazine, Mr R. S. Bagnall records 

 Trichothrips pedicularius from Midlothian. Having succeeded in 

 finding the little insect in other counties within the Forth area 

 during the past few weeks, I am able to give the following addi- 

 tional localities for it, namely : Kipps, Linlithgowshire, on Stereum 

 rugosum growing on dead beech, January ; Binning Wood, 

 Haddingtonshire, on Stereum hirsutum on old birch, January; 

 and near Aberdour, Fife, on S. hirsutum on dead beech, February. 

 On each occasion it occurred both adult and immature, but only 

 in small numbers. William Evans. 



